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WorksheetsHeart Contraction
Total questions: 13
Worksheet time: 9mins
Drag and drop each label to its correct position
bundle branch
purkinge fibers
AV node
pulmonary artery
Bundle of His
SA node
The diagram is of
contraction of the ventricles
contraction of the atria
relaxing of the entire heart
the valves that leave the atria
What is the main function of the electrical conduction system in the heart?
Filter and purify blood in the heart
Coordinate and regulate the heartbeat
Transport oxygen to the heart muscles
Generate electrical impulses for muscle contraction
Which part of the heart receives the electrical impulses for a contraction?
Pulmonary artery
Atria
Ventricles
SA node
What is the name of the specialized group of cells that acts as the natural pacemaker of the heart?
bundle of His
sinoatrial node
atria
ventricles
What is the correct sequence of the electrical conduction system in the heart?
SA node -> AV node -> Bundle of His -> Purkinje fibers
AV node -> SA node -> Bundle of His -> Purkinje fibers
SA node -> AV node -> Purkinje fibers -> Bundle of His
SA node -> AV node -> Bundle of His -> Atria
What happens during the P segment on an electrocardiogram (ECG)?
contraction of the atria
contraction of the ventricles
relaxing of the atria
Relaxation of the ventricles
What is the significance of the diastole of the heart at the end of electrical conduction?
The relaxation phase is not significant in the electrical conduction system of the heart.
The relaxation phase allows the heart muscle cells to reset and prepare for the next contraction.
The relaxation phase is responsible for the initiation of the electrical impulse in the heart.
The relaxation phase helps in the heart pre-contract for the next heartbeat.
What is the role of the Purkinje fibers in the electrical conduction system?
They produce hormones that control heart rate.
They conduct electrical impulses throughout the ventricles of the heart.
They regulate blood flow in the arteries.
They conduct electrical impulses throughout the atria of the heart.
What is the name for the blue "strings" in the heart diagram?
bicuspid valve
pulmonary artery
cordinae tentonae
purkinge fibers
Drag each label to its correct label
inferior vena cava
pulmonary valve
pulmonary artery
aorta
tricuspid valve
bicuspid valve
What is the correct order of contraction in the ventricles?
bundle of HIS, purkinge fibers, bundle branches
purkinge fibers, bundle branches, bundle of His
bundle branches, bundle of His, purkinge fibers
bundle of HIS, bundle branches, purkinge fibers,
Which letter(s) represent the ventricle contracting?
P
Q
QRS
T
